Carbon rods
We offer carbon rods for dry batteries in 11 regular sizes, including R03, R1, R6,R10, R12,R14, R20, R25, R40, S4, AR40 etc.;
In 3 grades, 1st-class,2nd-class ,3rd-class;
And 5 types in waterproofness , impregnation, S, O, C, P, PS;
And total more than hundred models.
Specifications in 3 grades

|
Resistivity(mΩ.cm) |
Flexural Strength(M.Pa) |
Fe(%) |
Ash(%) |
3rd-class(G,C) |
≤5 |
≥32 |
≤1 |
≤16 |
2nd-class(B) |
≤4 |
≥32 |
≤0.4 |
≤10 |
1st-class(X) |
≤2.5 |
≥32 |
≤0.2 |
≤2 |
Type |
Diameter(Φ) |
Length(L) |
Standard(mm) |
Tolerance(mm) |
Standard(mm) |
Tolerance(mm) |
R03 |
3 |
+/-0.03 |
42 |
+/-0.10 |
R1 |
3 |
+/-0.03 |
28 |
+/-0.10 |
R6 |
4 |
+/-0.03 |
47 |
+/-0.10 |
R10 |
5 |
+/-0.03 |
54 |
+/-0.10 |
R12 |
6 |
+/-0.03 |
54 |
+/-0.10 |
R14 |
6 |
+/-0.03 |
46 |
+/-0.10 |
R20 |
8 |
+/-0.04 |
57 |
+/-0.10 |
R25 |
8 |
+/-0.04 |
87 |
+/-0.10 |
R40 |
25 |
+/-0.25 |
140 |
+/-0.50 |
S4 |
15 |
+/-0.25 |
115 |
+/-0.50 |
AR40 |
18 |
+/-0.15 |
150 |
+/-0.50 |
5 types of waterproof treatment |

|
Impregnation(%) |
Air permeability(4kg/cm2, ml/min) |
Liquid permeability |
S |
|
|
|
O |
2~6 |
≥0.5 |
Meet the request of the customer |
C |
3~7 |
≥0.5 |
P |
5~9 |
≤0.5 |
PS |
6~12 |
0 |
|
Packing: Cartons and plastic woven bags are available or prepare according to the requests of the customer. |
We accept the orders with special request in below specification items:
Diameter |
As per request |
Fe |
As per request |
Length |
As per request |
Carbon |
As per request |
Resistivity |
As per request |
Air ermeability |
As per request |
Flexural Strength |
As per request |
Impregnation rate |
As per request |
Ash |
As per request |
Waterproof treatment |
Use oil or ParaffinAs per request |
Detailed offer is subject to the specifications of the customer. |